function popupImage(img, pname, W, H){
    var sitedomain = 'http://site.www.ostwest.local';
 var winWidth = (W) ? W : 640;
 var winHeight = (H) ? H : 525;
    var winName = (pname) ? pname : 'window';
    var X = Math.round((screen.width - winWidth) / 2);
    var Y = Math.round((screen.height - winHeight) / 2);
    params = "scrollbars=yes, status=yes, resizable=1, width=" + winWidth + ",height=" + winHeight + ",left=" + X + ",top=" + Y;
    wID = window.open(img, winName, params);
}